Pray with sincerity & humility while raising your arms up high enough such that your armpit can be seen clearly .

The hadith narrated by Anas tells us about the Prophet's practice of raising his hands high when praying for rain. This is a sign of humility and submission to Allah, as it shows that we are asking Him for something and relying on His mercy. It also serves as an example to us, showing us how we should pray in times of need. We should remember that Allah is always listening and will answer our prayers if He wills it. We must also have faith that He will provide what is best for us even if it may not be what we asked for initially.

The Prophet's practice of raising his hands high enough so much so that the whiteness of his armpits was visible serves as a reminder to us to put forth our utmost effort in supplicating to Allah and seeking His help with sincerity and humility. It teaches us the importance of having faith in Him even during difficult times, knowing that He will provide whatever is best for us according to His wisdom and knowledge.