Knowing and feeling Hashem’s kindness and love for us is from the foundations of Judaism. The Chovos Halevoves enumerates in Shaar HaBechina Hashem’s benevolence in order we should obtain the proper Gratitude to Hashem and recognize that we’re obligated to serve Him.
A person who lives with Emuna understands that everything that happens in the world is directly from Hashem, which He bestows upon us due to His compassion. As he goes through the day and knows that every move and breath is a present from Hashem he is overcome by the shower of gifts. Such a person is overwhelmed with Hashm’s love.