We are not suppose to celebrate those because these holidays come from greek/pagan origins and our religion warns us not to follow pagan ideologies. Valentine’s day, the cupid a Greek symbol of love= Pagan. Celebrating birthday, ok this goes back to Greece too. The Greeks would go to a mountain temple belonging to a goddess and they would light candles on a cake and place the candle on the temple. If the wind blew their candles first it meant the goddess granted their wish. Christmas again not a chrisitan holiday but rather a roman holiday. This is when the Romans used to have sex with young boys!!! im not joking read upon it and exchanged gifts, this practice was later changed due the advent of Jesus Christ. No one knows when Jesus was born. If you don’t believe me you gotta do your research! Stay away from these devil worshiping traditions. If you study the old cultures clearly you’ll come to realize that there are a lot of aspects in them that contradict our religion and Christianity as well. Haloween we all know in Quran Allah says not to communicate with the dead and the dead are to be respected. Halloween is another greek/roman holiday when it was introduced by the Spaniards to the Mexicans which became known there as the day of the dead. The Freemasons borrowed the idea from their secret rituals and implemented those in their new found land America, which later became known as Halloween! Again if you dont believe me read upon secret societies and the Freemasons their game of masquerade that they play is very similar to Halloween