Often times in Japan we hear the phrase, "All roads lead to the top of Mt. Fuji", meaning, "Every spiritual road we take, if we are intent on seeking purity and truth, really goes to the same destination anyway."
If you believe something like that then I encourage you to look at this Bible verse (John 5:23) where Jesus' words are recorded:
Jesus said, “Whoever does not honor the Son (Jesus) does not honor the Father (God) who sent him.”
John Piper writes:
"In other words, if you want to know if someone in another religion, or no religion, honors God (has a true worshipful relationship with God), the test that you use to know this is: Do they honor Jesus for who he really is—as the divine Son of God, the Messiah, the crucified and risen Savior of the world, the Lord of the universe and Judge of all human beings? If they don’t, then they do not honor God." And by implication they do not find purity or truth.
Again Jesus said clearly, “I am the way, and the truth, and the life. No one comes to the Father except through me." - John 14:6 (My emphasis added)
The Good News is that God welcomes all to come to Him through Jesus Christ for free, not on the basis of innate goodness or depth of spirituality. The road to the top of Mt. Fuji is really a narrow road that can only be taken with the all-powerful loving God at your side guiding and providing for your every need every step of the way.