Here is a short list of things people feel highly grateful: answered prayers, awareness, being here right now, body, challenges, comforts, connection, creation, daily sustenance, deliverance from hardship, divine blessings, divine grace, divine guidance, freedom, friends, gift of existence, God's love, God/gods, good coming from the divine, health, imagination, kindness of others, knowing I am not alone, liberation from sufferings, love, music, myself, nature, opportunities, parents, partner, peace, pets, promise of eternal life, relationships, safety, salvation, scriptures, second chances, strength, sun, sweet memories, teachers, today, etc.
Gratitude is a sacred duty, some add.
Lord Krishna points out in the ancient Bhagavad-Gita: “Those who realize the Self are always satisfied. Havin