If the mountain will not come to Muhammad, then Muhammad must go to the mountain proverb
This proverb is based on a tale that Muhammad once sought proof of his teachings by ordering a mountain to come to him. When it did not move, he maintained that God had been merciful, for if it had indeed moved they all would have been crushed by it.
If things do not change the way you want them to, you must adjust to the way they are.
If David can't come to see me, I'll have to come see him. Muhammad must go to the mountain, if the mountain won't come to Muhammad.
I will try to change my attitude when I'm confronted with a situation that I cannot control since if the mountain will not come to Muhammad, then Muhammad must go to the mountain.
To suddenly change one's attitude, opinion or behavior
The proverb "If the mountain will not come to Muhammad, then Muhammad must go to the mountain" arises from the story of Muhammad, as retold by Francis Bacon, in Essays, published in 1625.
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.