God has the power to provide for us. As he does for the the birds of the air. He knows what we need, so we should not doubt his power. We can be free of the worries of our needs for food and clothes and shelter, we can rest in his care. So we can seek God's agenda, leaving our needs in our Father's tender care. Our faith can't be some superficial ritual to get what we want, rather faith is obeying God's will and know that he will ultimately do for us us what is in our best interests. We all have basic needs, Gods knows that, but Jesus calls us to depend on God for our daily needs. Jesus refers to God as our Heavenly Father, a good father who provides, who knows what we need well beyond this moment and well beyond what we think we know.
Look at the birds of the air, they neither sow nor reap nor gather into barns and yet your heavenly Father feeds them. Are you not of move value than they? Yet when Jesus forbids us to worry about tomorrow, this does not mean that concerns will never press upon us. It means instead that we should express dependence on God in each of these concerns. We should pray for our genuine needs.