"Standing together to pray" is not certainly religious syncretism. It is not possible to "pray together", that is, have a common prayer, but we can be there when others pray, showing in this way our respect for other people’s prayers and for other people’s attitude in front of the deity. At the same time we can offer them a humble and sincere evidence of our faith in Christ, Lord of the universe." There is only one divine plan for every human being who comes into this world (see John 1:9), a single principle and purpose, whatever the colour of his/her skin, the place and the culture in which he/she lives and works. "Men can often be unaware of their radical unity of origin, destination and inclusion in the divine plan, and when they profess different incompatible religions, they can also feel their differences to be insuperable. But despite this, they are included in the great and unique design of God, in Jesus Christ. This is true not only for Christians but for all people of good will in whose hearts Grace is invisibly active. Christ died for all and the ultimate vocation of man is in fact one and the same destiny, we must believe that the Holy Spirit offers everyone the opportunity to become partners, in a way known to God, in the Easter mystery. "

(Extracts from the speech of John Paul II,  World Day of Prayer for Peace 86 - references to the Gospel of John 1.9 and Gaudium et Spes 22).

One of the most famous spiritual masters of Hinduism was Swami Sivananda, who founded in Rishikesh, in the Indian State of Garhwal, a lively center of spirituality (= ashram), known throughout the world. Sivananda was a doctor in Malaysia, but then he followed a clear vocation and became a well-known "guru" (= master, wise man), a saint to whom everybody used to refer to in order to learn the experience of love for God and love for one another, especially for the people who were most needy. A Christian asked him one day: "Master what would you say to a Christian, how could you help him to reach the fullness of his faith?". He said: "Get to know the personality of Jesus, live with Him all the time. He is always at your side and you can ask Him: 'What would you do in this situation?' Read the Gospel every day, so Jesus will become a reality for you now and will not be only a historical character. He is closer to you than your own breath. The Kingdom of God is within you. You can realize this from within, from your heart, which is more important than intelligence, which might even be an obstacle between you and your experience of God. At the beginning of our spiritual life we seek God outside, as He were 'another' person, He, the lover, and us, His devotees. Later on, we can think of Him as the One who is. But now, look inside yourself and enter the inner sanctuary of your heart. " (Dialogue taken place in Madras)
"From now on, the religious life of humanity will be lived, if it ever will be, in a context of religious pluralism... This is true for all of us, not only for humanity in general or in the abstract, but for you and me as individuals. People who have different beliefs are no longer peripheral or distant, a curiosity from travellers’ stories. The more we are aware of and take part to our lives, the more we realize that these people are our neighbours, our colleagues, our rivals, our companions. Confucians and Hindus, Buddhists and Muslims are not with us only in the United Nations, but on the streets. Not only has the fate of our civilization become increasingly influenced by their actions, but we also personally meet them and have coffee with them. "

(Wilfred Cantwell Smith - The Faith of Other Men, Harper and Row, New York 1962.11)