The combination of chesed together with rachamim has power to achieve salvation. This stands to reason because of the principle of "measure for measure." Salvation requires G-d giving one chesed together with rachamim.
If a single wants a mate, to whom (s)he will be obligated to give chesed together with rachamim, then the single must be a person who can uniformly practice chesed together with rachamim. If the single behaves with Rachel's combination of chesed together with rachamim in practical behavior with other Jews, if the single refrains from hurting and, rather, does good for fellow Jews - including for all their feelings, property, dignity and needs; and if in one's behavior the single goes beyond the letter of the law on behalf of other Jews, then perhaps we can ask G-d, measure for measure, in His behavior with the single, and in His answering of prayer for the single, to go beyond the letter of the law and give chesed together with rachamim, to give redemption and salvation.
Marriage is a committed undertaking in reciprocal chesed together with rachamim. Salvation from singleness requires each having the capacity to treat all fellow Jews with chesed in conjunction with rachamim.
When two people practice chesed together with rachamim, heart to heart, there is a real relationship, a genuine connection. Anything OF YOURSELF that you withhold that you have gets you labeled up in Heaven a "thief." You have it. You should give it. You withheld it. Tangible resources (e.g. material possessions) as well as intangible (e.g. emotional support) are gifts from G-d, given to be shared and contributed where they can do good.
Being a mentsh, sensitivity to other people's feelings, responsibility, generosity, maturity, derech eretz, thoughtfulness and ongoing bestowal of practical kindness...delivered by you with a full heart...are among the strongest advocates in Heaven that you merit and deserve your zivug. You're not the thief who robs a close, dependent, vulnerable person of the potential which you have within you to give and which the other person needs from you at all times. You're a masterful and responsible giver and benefactor with whom the other person can be happy and secure. Another person is "safe" and can be entrusted to you by G-d for a lifetime. And this is "showing G-d" that you want your marriage to be what G-d wants your marriage to be. "Do His will that He do your will; cancel your will for His will that He cancels the will of others for your will (Pirkei Avos, chapter 2).
We learn in midrashim that Yitzhok, Rivka and Rachel all merited and married each one's zivug after acquiring and mastering the combination of chesed together with rachamim.
The combination of chesed (active lovingkindness) and rachamim (compassion, mercy) is a key "package" that can make or break a marriage. It is the ability to "tune in" to another person; to connect with their feelings, mind, situation, needs; and to adjust your inner self to be caringly and effectively responsive to another person.
It is the practical capacity to have the chesed-rachamim "team" that is fundamental not only to making a marriage, but also to breaking through to merit receiving one's soulmate. Without the "package" of chesed together with rachamim, one may be deemed by Heaven not ready or of merit to receive one's spouse. Or, it is a combination, the absence of which, will promote disharmony, trouble, unhappiness and separation in a marriage. Its absence will lead to indifference, callousness and/or cruelty. We will see in the chapter about Yitzchok and Rivka that both demonstrated rachamim, in conjunction with chesed, at the time when the Torah tells us that they each were ready to receive each other in marriage.
Yakov was to marry Rachel. Her father, Lavan, was a swindler who disguised his other daughter, Leah. Lavan brought Leah, instead, to the wedding. Rachel gave her sister Leah the signals that would tell Yakov to go ahead with marriage to a veiled Leah, because Rachel had compassion and mercy for the profound degree to which Leah would suffer and be humiliated publicly if Leah's identity were disclosed and Yakov's wedding to Leah were interrupted.
This was to have been Rachel's wedding to Yakov. Her father pulled an intentional, deceptive switch. Appreciate Rachel's sacrifice! In the merit of Rachel's combining chesed (active lovingkindness) with rachamim (deep, sensitive, compassionate feeling and mercy), she
1. also married Yakov seven days later and
2. created the merit that will cause all of Israel to be redeemed from golus (exile).
This is all due to Rachel's action, which came from her manifesting chesed together with rachamim. By practicing chesed and rachamim in combination with each other, she had the power to prevail on G-d (!) to grant chesed together with rachamim (mida kinegged mida, measure for measure) for
1. her own marital situation and
2. the entire Jewish people!