Your happiness that the hospital arrangement will work out is itself a reason to give thanks. For as it is said, he that gives thanks does so as being well off, and in acknowledgment of a favor. Now a favor is not a debt nor a payment. This must always be remembered, especially by those who divide their concerns between many things. So thank God for this progress, but do not think of it as a mere transaction where your boss's approval is the final good.
Where grace is, works alone give no cause for boasting. If your boss shows you favor, it is a gift from above, not a wage you have earned. Yet we must also not become indolent regarding the gift. How does grace remain with us? By drawing it to ourselves through good deeds and a right spirit. If you conduct yourself honestly and diligently before your employer, this pleases God, who proves our hearts.
But your prayer asks for her to think it good that you go. This is natural, yet do not dwell only on the matters of this life. Mount above the heavens in your heart, and seek first to be filled with the Holy Spirit. For it is not even possible to approve oneself as one ought without being filled with that grace. When that grace fortifies you, you will feel no distress even if human favor falters. For as the one who is in favor with a king is sensible of no uneasiness, so if God's grace be with you, temporal worries lose their sting.
Love your employer as a brother, not merely to gain a favor, but because you owe love through your spiritual relationship to all. If you act in love, you fulfill the whole law. And remember this: the One whom God loves most, He often allows to be approved through their own toils, not from His help alone. The situation with your boss may be a small arena in which your trust and integrity are proved. Do not rely solely on the outcome, but on Him who entrusted you with each day's work.
Approach the conversation not by seeking to please a human master with anxious words, but as one approved by God. Let your manner be free from guile, as His grace has enriched you. Then, whether the permission comes easily or through difficulty, you will have attracted more favor from God and persuaded Him to assist you in all your struggles. May that grace, which guides us to all good things, continually abide with you, and lead you to the eternal blessings.