Asylum is a form of protection which allows an individual to remain in the Finland instead of being removed (deported) to a country where he or she fears persecution or harm. Finland law, people who flee their countries because they fear persecution can apply for asylum. If they are granted asylum, this gives them protection and the right to stay in the Finland.
You need to be within the Finnish territory when you apply for asylum in Finland. You cannot apply for asylum for example by sending a letter or an e-mail to the Finnish Immigration Service. It is also impossible to apply for asylum at a Finnish mission (embassy or consulate) located outside Finland.
There is no application form that you can use to apply for asylum in advance. The only way to apply for asylum is to talk to a police or a border control official in Finland.
You can watch videos about applying for asylum on the YouTube channel of the Finnish Immigration Service. The videos are available in Finnish, English, Arabic, Dari, Persian, Somali, Turkish and Russian.