Android Question Open a Activity closed

hi
i have a simple question

i make one activity named Main other test

When i press button1 in Main activity
i put this function

MAIN ACTIVITY

to call my test activity
it works fine

now in my test activity i want to open again Main Activity
it is possible?
TEST ACTIVITY

B4X:

Sub Button1_Click
CallSubDelayed(Main, "teste")
Activity.Finish
End Sub

sub teste
end sub

but dont work because Main activity is closed
have a way to open Main activity in other acitivity?

for example
TEST ACTIVITY

B4X:

Sub Button1_Click
'OPEN OR INITIALIZATE Main activity later
CallSubDelayed(Main, "teste")
Activity.Finish
End Sub

sub teste
end sub