Rejoicing: what is the joy of the Lord, is it hidden!?

Rejoicing: two sermons by Bryn and Richard on, well, rejoicing... having joy again. Is joy hidden so deep you can't find it, or should it manifest in life.
'The joy of the Lord is our strength': if it's our strength, we need it!
We are Lowdham Christian Chapel: a new church in Nottinghamshire in the Lowdham, Bingham, Southwell, Calverton, Burton Joyce area which was founded 180 years ago (the church is being rebirthed!).
We've had contacts over the years with NSPPD, Streams of Joy International (Nottingham), Woodborough Baptist Church, Carlton Road Baptist Church, Netherfield Baptist Church, Southwell Methodist Church, Mow Cop Methodist Church, Riverside Church Southwell, Gospel Hall on Mapperley Top, Gospel Hall in Kirkby-in-Ashfield, Carmel City Church Bristol, Nottingham Prison Chaplaincy, Radford Evangelical Church, Arnold Road Evangelical Church, St. Mary's Church (Church of England) Lowdham, St. George & St Mary Coptic Church Nottingham, Andrew Wommack Ministries Europe, Kenneth Copeland Ministries, Seventh Day Adventist Church Mansfield Woodhouse, and so forth: in other words, we've mixed with just about everyone! Our own position is that the Bible is the Word of God written; the Lord Jesus is the Word of God walking; we are Trinitarian! Glory to the Father, the Son, and the Holy Spirit, amen, amen, and amen. Even so, come Lord Jesus!