Give yourself over to
Definition 1 of 2
Pro Tip 1/3Emotional Depth
Use it when expressing a deep emotional attachment or dedication. 
After years of hesitation, she finally gave herself over to love.
Pro Tip 2/3Positive Pursuits
Often relates to positive and constructive activities or hobbies. 
He gave himself over to charity work every weekend.
Pro Tip 3/3Full Commitment
Implies a complete and often exclusive focus on the activity or cause. 
She gave herself over to her research, forgetting even to eat.