Hart is expected to leave in the summer, but until then, he is focused on winning minutes at Turf Moor.
"This lockdown has made me realise how much I want to play football," he said.
"All I want to do is be a big part of something. I understand I'm not going to be part of Real Madrid. I don't think I've lost the ability, but I know how football works. I just want to be a big part of a club and give my all to them. That hope burns through me.
"I'm going to try and get back in the team. And if I don't, there's always another transfer opportunity.
"There's no point in sulking. I'm still part of the squad. It gives you some power if you have a dialogue with the manager. It's important to have that when you're doing well. But it's even more important when you're not doing well."