c++ explicit call to constructor and temporary object

#include <iostream>
using namespace std;

class Test
{
    public:
    Test()  { cout << "Constructor i`enter code here`s executed\n"; }
    ~Test() { cout << "Destructor is executed\n";  }
};

int main()
{
     Test();  // Explicit call to constructor

    return 0;
}

in above code we are calling constructor explicitly and When the constructor is called explicitly the compiler creates a nameless temporary object and it is immediately destroyed. why do we need this temporary object??