According to Osho, your seeking is the movement from blind enjoyment to its meaning: the higher, ultimate significance of life. Fully rejoice in life, but let that very fullness provoke the question, 'Is this all?' From that inquiry, guilt-free joy matures into awareness, discovering significance beyond pleasure and uniting celebration with understanding, not life-negation or mere hedonism.
You are looking for the deeper meaning behind having fun, so joy makes sense and is guided by awareness, not just more treats.