How do you make two interfaces reference the same object?

I would like to make two interfaces reference the same object.

package main

import (
    "fmt"
    "reflect"
)

func main(){
    var a, b any

    a = "Hi"

    b = reflect.ValueOf(&a).Elem()
    a = reflect.ValueOf(&b).Elem()

    b = "Howdy"

    fmt.Println(a)
    fmt.Println(b)
}

PRINT LOGS

Howdy
Howdy

PLAYGROUND: https://go.dev/play/p/qizVO42UaUj

This code works as intended, aside from the fact that a and b are not interfaces. So when I convert them to interfaces like so...

package main

import (
    "fmt"
    "reflect"
)

func main(){
    var a, b any

    a = "Hi"

    b = reflect.ValueOf(&a).Elem().Interface()
    a = reflect.ValueOf(&b).Elem().Interface()

    b = "Howdy"

    fmt.Println(a)
    fmt.Println(b)
}

PRINT LOGS

Hi
Howdy

PLAYGROUND: https://go.dev/play/p/jCpuepBJYdD

...the code no longer works as intended. Is there a way to convert from the reflect.Value data type to the interface data type while maintaining that the two variables reference the same object?