Hi, half-Filipino here.
The
Salubong (‘Meeting’) is really based on a pious tradition - not exactly attested in Scripture - that the very first person Jesus appeared to after His resurrection was His mother. I don’t know if a similar custom exists in other countries, but in the most common version of the custom (there some slight variations on the ritual depending on the locale), it involves two different processions starting at different points very early in the morning. The first consists of the statue of the risen Lord accompanied by men, while the second consists of a statue of Our Lady, with a black mourning veil (
lambong) covering her face, accompanied by women and children.
The two processions meet at a predetermined area, often the church courtyard, after each making their way round about the town, from different routes. In this area stands a structure - usually temporary, but in a few areas permanent - often called
galilea (‘Galilee’; cf. Matthew 28:7). At the climactic moment, an ‘angel’ appears from the
galilea, usually in some ingenious fashion and removes the veil from the statue of the Blessed Virgin (
Regina Coeli is sometimes sung at this point), at which point the mood changes into one of joy. Usually immediately following the
salubong is the Mass of Easter Sunday.