וַיִּזְכֹּ֥ר אֱלֹהִ֖ים אֶת־רָחֵ֑ל וַיִּשְׁמַ֤ע אֵלֶ֙יהָ֙ אֱלֹהִ֔ים וַיִּפְתַּ֖ח אֶת־רַחְמָֽהּ׃
And God remembered Rachel, and God hearkened to her, and opened her womb.
Read kabbalistic (mystical) interpretation of Genesis 30:22: and classical mystical sources.