We don't know how hold hands yet. It's ok, Daddy will guide you all; to the righteous path....
The Prophet (PBUH) used to fast on Mondays and Thursdays, and when he was asked why that is, he replied; "The deeds of the one are lifted to Allah in these days, and I like mine to be lifted while I am fasting."
He (PBUH) also said about fasting Mondays; "This is a day I was born in."
Sahl ibn Sa'd reported that the Prophet salla Allahu alaihi wa sallam said: "There is a gate to Paradise that is called ar-Rayyan. On the Day of Resurrection it will say: 'Where are those who fasted?' When the last [one] has passed through the gate, it will be locked." [al-Bukhari and Muslim].