I am not saying anything about what you can do and can't do. But you should know, you who praise the knowledge of church history, that being outside of either the Orthodox or Catholic church would historically have been considered a matter so serious that you salvation would have been not only questioned, but seriously threatened. And I am not talking about the middle ages, no, this view was held already in the end of the first century and beginning of the second century by Ignatius of Antioch etc. Also, they claimed that the Eucharist was needed for salvation, they took John's words literally. You know why? Because they lived when the Gospel of John was written. Also, salvation is not something you do by yourself. Christians are not supposed to be heavenly utilitarians you know? And salvation is OF the world, not FROM it. Personally, I have no opinion on whether you need a church or not, I am just saying what has been held since the beginning of Christianity. The mistake of protestantism consists in saying that the Church is the totality of the ‘saved ones’, but saved individually (“I am saved”!), so that each salvation does not mean anything for the world, does not accomplish anything in the world; the salvation of the world is not accomplished in the salvation of each man. The church, in other words, becomes a sect – a sect obsessed with salvation as such, without relation either to the world or to the Kingdom of God. By renouncing cosmology, Protestantism actually renounces eschatology, since man has no other symbol, no other sacrament, i.e., no other knowledge of the Kingdom of God, than the world; so a man’s salvation is always also the salvation of the world, the knowledge of the church as the presence of the ‘new creation’. If Protestantism is individualizing salvation, and making it a personal salvation by emptying it of any cosmic and eschatological content, it makes man endlessly lonely, torn apart, separated from the world, from history, from the Kingdom of God. Protestantism, intending to purify Christianity from pagan contagion, in fact was the annihilation of the eschatology of Christianity. The world is created as communion with God, as ascent to God; it is created for spiritualization, but it is not ‘god’ and therefore spiritualization is always also the overcoming of the world, the liberation from it. Thus, the world is a ‘sacrament’. The fatal mistake of Protestantism is that, having justifiably rebelled against the immanentization of Christianity during the Middle Ages of Catholicism, it rejected the ‘sacrament’, not only religion as sin and fall, but also the religious nature of creation itself. Influenced by this de-sacramentalized view of the world, many of us (Orthodox, Catholic, Protestant, or otherwise) have become agents of destruction, rather than agents of salvation for the life of the world.