OPENVPN connection to my router in a subnetwork

I want to connect through openvpn to a Pfsense router. The main router is at 192.168.0.1, subnet 255.0.0.254. The pfsense router ip on the main network is 192.168.0.102. The pfsense has a network with 192.168.1.1/24. I am not able to do it. I m taking the normal analogy for internet vpn protocol and taking 192.168.0.102 as the internet facing ip. so when i am trying to connect from an ip say 192.168.0.100 then i will do tunneling to ip 192.168.0.102 and service port of 1194 so that i can get to 192.168.1.1. I am not able to connect. am i thinking something wrong. PLZ HELP!!!

Not clear on your goal or why you have a 255.0.0.254 subnet.

I am on a shared internet with my friend who is allowing me to connect and is sharing with few more therefore cannot change anything on it. So I used the connection in my pfsense router wan . Now to try, i am trying to be on my friends router with my laptop and connect to my pfsense network. Technically i should be able to easily do it if i m nt doing anything wrong