The benefits of any form of speaking in tongues or praising in tongues or praying tongues are not required but can be,if used properly,spiritually good in your bond between you and God,I said if used properly,because it is written"there must be an interpeter when two or more propecy or speak in tongues" though if you wish to speak In tongues,praise in tongue,or pray in tongues you are at liberty to do so by yourself when exclaiming devotion to God,because in this way Jesus is your mediator to God,otherwise your interpreter to God,for indeed God knows clearly what you say whether outloud or to yourself in a crowd,but God expects,ORDER,when 2 or more are gathered together,"For God is not the author of confusion,but of peace," so when concerning tongues,"let all things be done decently and in order"(I just read in 1 Corinthians chp.14) though paul tells that is better to prophecy than to speak in "unknown" tongues,for to prophecy edifies one's self and understanding is gained,where as to speak in tongues if you have an interpreter it edifies the church,but if you have no interpreter paul states,"except ye utter by the tongue words easy to be understood,how shall it be known what is spoken?" "for ye shall speak into the air",so you see the church or any who speak unknown tongues in groups of 2 or more must have an interpreter simple as that,if church congregations lack this "Truth" then simply bring it before the congregation,because it really is such a simple thing to remember,when using unknown tongues in churches or crowds,just be sure to apply this otherwise doing so lacketh "understanding" because it is a means of communicating with God,in thanks or asking for help or praise,but if not used properly if anyone whom know not what you do nor what you say come amongst the church then you will seem as mad to them! as in simply be sure that not just your church can understand what you do in use of the gift of unknown tongues,but also those who come from without your church,because it's kind of like saying to them, we have enough,God needs only us,we know what we're doing but we don't need you to understand,because with no interpreter,it's kind of like, a person coming in to the church and feel like their intruding because you give no way for them to understand if you are just having fun saying alot that makes no sense or if you are speaking unto God through unknown tongues,there in lies the importance of an interpreter,not keeping the blessings of God to yourself but rather sharing them with others,for what profits God from only having just a church congregation that isn't added to,because praise and prayer are indeed important,but seeking out lost souls and helping them come to God is far "MORE IMPORTANT" than just praise and prayer,for you make use of what God has given you so that God "Gains" from your "Actions"!!!