How can a woman return to the sweetness of faith and devotion in prayer and supplication after a period of spiritual weakness and distance, especially when she desires to have a second child and feels that her seeking of forgiveness has become merely with her tongue and not with her heart?

Souls experience periods of activity and inactivity. It is recommended to frequently seek Allah's forgiveness (Istighfar) and remember Him (Dhikr). When praying, prepare for it early in a quiet place away from distractions, try to ponder over the supplications and Quran you recite, and strive to bring back your wandering thoughts. It is advisable to study the virtues of humility (khushu') and the biographies of the pious predecessors (Salaf), and to avoid trivial matters. It is recommended for spouses to cooperate on a divine program that includes studying and acting upon the texts of the two revelations (Quran and Sunnah). Allah the Almighty says: (And if they had done what they were admonished thereby, it would have been better for them and a stronger confirmation [of their faith]; And then We would have given them from Us a great reward. And We would have guided them to a straight path.) [An-Nisa: 66-68]. And frequently ask Allah for steadfastness and the renewal of faith.